Errors

[David Blair]

Two questions:

1) Why would I get the error /dev/pts/tb: file table overflow when attempting to login to my unix machine?

2) If I am at the console and enter ^b to get to the GSP prompt, what do I do in there and how do I get out?

Can you tell I'm not an HP guy?

[Patrick Wessel]

David,
log on to the GSP and use the command "he" to see what the GSP can do for you
(reading the logs, see the status of the power supplies, power cycle the box...)

[CHRIS ANORUO]

Increase the value of nfile from kernel configuration thro SAM

[Stefan Farrelly]

1. file table overflow means youve exceeded a kernel value. Increase maxusers of nfile, rebuild the kernel and reboot to fix that.

2. GSP stuff - Patrick is the expert, see his answer.

[Alan Riggs]

1 has been covered.

2 -- simple answer "co" returns you to console mode. Better answer -- use "he" and try every menu option to familiarize yourself with what it can do. Good stuff there.

[Bill Hassell]

One caution about CTRL-B on all HPP 9000 servers: it does put in direct communication with the processor ROMs--on most servers, no login and password is required. There are some serious hardware commands in there that can take down the server and/or force a crash dump.

Be careful about allowing the system console to be in an unsecure area and protect the GSP (found on systems like the N- and L-class) with a login and password. On many servers, there is a switch or key to disable the CTRL-B access method.

[Bill Hassell]

One caution about CTRL-B on all HPP 9000 servers: it does put in direct communication with the processor ROMs--on most servers, no login and password is required. There are some serious hardware commands in there that can take down the server and/or force a crash dump.

Be careful about allowing the system console to be in an unsecure area and protect the GSP (found on systems like the N- and L-class) with a login and password. On many servers, there is a switch or key to disable the CTRL-B access method.

[James R. Ferguson]

David:

Just to add to Alan's & Bill's comments. On K-class servers the key to which Bill refers in in the very front. It's a 3-position switch (off, normal, maintenance as I recall). On a D-class you will find a small, slide switch on the back of the cabinet. Because of the "power" available in the enabled mode, I prefer to leave the key or switch disabled so that an inadvertant CTL_B can't be issued. May save you a middle of the night call from an operator who inadvertanty got where they shouldn't.

...JRF...